HP-MPI Version 1.0 for Windows Release Note

HP-MPI V1.0 for Windows Release Note

Configuring Your Environment

Figure 1 Job Allocation

To run an MPI application, submit the mpirun command to the scheduler. HP-MPI uses the

environment of the task and job where mpirun is executing to launch the required mpids that

start the ranks.

It’s important that mpirun uses only a single processor for its task within the job so the

resources can be used by the other processes within the MPI application. (This is the opposite

of MSMPI, which requires all of the processor to be allocated to the mpiexec task by the MPI

application.)

Submitting jobs

The section includes general information for submitting jobs either from the GUI or the

command line.